This is one of the most common questions we get, and honestly, you can't always tell just by looking. A stain can be old and dry, or it can be sitting on top of moisture that's been feeding mold growth inside the ceiling for weeks.
A few signs that point toward an active problem rather than old damage:
What's visible on the surface is often just a fraction of the actual damage. Mold spreads inside wall cavities and above ceilings long before it's visible, which is why a professional moisture inspection matters more than a visual check. We offer free inspections specifically so you can get a real answer before deciding whether it's a problem worth worrying about.
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